Emma Watson, star of new movie Harry Potter and the Half-Blood Prince, has
insisted that she is simply "too busy" to indulge in any wild
behaviour.

The 19-year-old actress, who has played Hermione Granger in the Harry Potter films since the age of 11, said she works too hard to follow in the footsteps of other child stars such as Britney Spears by indulging in sex, drugs and drink.

As well as being at the centre of the Harry Potter phenomenon, she has recently been announced as the new face of Burberry, Britain's biggest luxury fashion label, plans to continue acting when she takes up a place at an Ivy League university in the US later this year.

Her latest film Harry Potter and the Half-Blood Prince, the sixth in the seven-part series, has already had the biggest ever five-day opening at a UK box office and broke the worldwide opening day box office record, earning more than$ 104 million (£63m) across the globe.

But no stranger to the London party scene, she has managed to avoid becoming tabloid fodder. The closest she came to scandal was being photographed with Razorlight rocker Johnny Borrell, 10 years her senior, last year.

“I can totally understand why young actors go nuts. The level of interest in their lives, the pressure to be perfect. That’s what you do, you screw up," she said.